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‘It’s not the rings: - - it’s inceorr be The chief engineer frowned. ‘‘Looks like that last set of high- pressure rings will have to come out, too.” He shook his head. ‘‘Replacing rings every trip costs money. I’m hearing plenty about it, too. This makes the eighth set of rings this year.” The Vacuum engineer spoke up: ‘“‘Chief, you can buy piston-rings until doomsday—but it won’t help. Jt’s not the rings. It’s incorrect lubrication. Swabbing piston rods and valve stems doesn’t do the job. We can put a stop to this if you’ll follow the suggestions I’ve made.” The chief engineer stood up. ‘‘All right,’’ he said. “I’m game. But if I have any trouble with oil in the boilers, you better not come here again.” Shortly after, the methods of applying oil were changed and the correct grade of Gargoyle Marine Oil was intro- duced. On the next trip oil consumption was lower. Im- VACUUM OIL COMPANY, Inc. A SOCONY-VACUUM COMPANY proved operation was apparent. It has been two years now since Gargoyle Marine Oil was first used and no piston rings have been renewed—no oil has reached the boilers.* It is more than likely that Gargoyle Lubricants and en- gineering service can help cut your costs, too. Our repre- sentative in any leading port will be glad to explain how we have lowered costs for vessels driven by machinery sim- ilar to your own. In the meantime send for one of these helpful books— “Steamships with Reciprocating Engines”? or ‘‘Marine Lu- brication—Motorships’”’. Address Vacuum Oil Company, Inc., Marine Sales Dept., D-3, 26 Broadway, New York. * This vessel is driven by a triple-expansion engine working on 200 Ibs. per square inch initial steam pressure without super-heat. Lubricating Oils MARINE REVIEW—March, 1933